He is even able to identify people by scent alone.

If the dogs followed by scent, he was going to give them something to smell.

But now, selling by scent may be coming to the supermarket.

Some can track by scent or sound, but they're said to be lazy.

Up to then he had hunted by scent, and his movement was slow.

It wasn't one of the other cats on board, as she knew them all by sight and scent.

From there, they simply would have been able to track us by scent.

It was like I could tell just by scent how old he was.

But she knew he was there by his scent and, in the next moment, his voice.

Some can track a person by scent or sound.